Forget the puppy love phase. Renée Zellweger and Doyle Bramhall II could be turning up their relationship notch, according to sources.

Sources tell Star that Renée and boyfriend Doyle are quietly planning for some wedding bells. “Renée and Doyle are crazy in love and want to spend the rest of their lives together,” says a pal. “She’s told close friends to keep mid-August free and says it’ll be a sandy affair.”

But all of their friends shouldn’t be in a hurry to book a plane ticket. Sources say the couple is wanting the event to be extremely intimate. “The whole thing will be very anti-Hollywood, with just a few of their closest friends and family,” adds the insider.

Even though this will be her second marriage, Renée’s first wedding to Kenny Chesney in 2005 which lasted only seven months, she couldn’t be more sure about marrying Doyle. But her friends have their doubts about their relationship, especially since Doyle and his ex-wife are rounding at a nice $300,000 in debt.